# Unable to use a variable containing "%" in email body

**URL:** <https://www.finalbuilder.com/forums/t/unable-to-use-a-variable-containing-in-email-body/7464>\
**Category:** Discussion\
**Created:** [March 20, 2024, 11:59am UTC](https://www.finalbuilder.com/forums/t/unable-to-use-a-variable-containing-in-email-body/7464 "2024-03-20T11:59:50Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![heath1](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/h/ccd318/32.png) [@heath1](https://www.finalbuilder.com/forums/u/heath1)\
**Post date:** [March 20, 2024, 11:59am UTC](https://www.finalbuilder.com/forums/t/unable-to-use-a-variable-containing-in-email-body/7464/1 "2024-03-20T11:59:50Z")

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I’m calling the Azure CLI to generate a SAS URI for an uploaded Azure storage blob. The URI includes escape codes, e.g. “%3A”.

I’ve read the URI into a variable but when referencing the variable in an email action body I get “Unable to set body [expression error]”.

I understand why the error is occurring but is there a way to prevent FinalBuilder from expanding the variable contents?

Thanks,  
Heath

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**Author:** ![Vincent](https://www.finalbuilder.com/forums/user_avatar/www.finalbuilder.com/vincent/32/938_2.png) [@Vincent](https://www.finalbuilder.com/forums/u/Vincent)\
**Post date:** [March 20, 2024, 9:19pm UTC](https://www.finalbuilder.com/forums/t/unable-to-use-a-variable-containing-in-email-body/7464/2 "2024-03-20T21:19:15Z")

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[https://wiki.finalbuilder.com/display/FB8/Variable+Evaluation+And+Recursion](https://wiki.finalbuilder.com/display/FB8/Variable+Evaluation+And+Recursion)

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**Author:** ![heath1](https://www.finalbuilder.com/forums/letter_avatar_proxy/v4/letter/h/ccd318/32.png) [@heath1](https://www.finalbuilder.com/forums/u/heath1)\
**Post date:** [March 20, 2024, 10:23pm UTC](https://www.finalbuilder.com/forums/t/unable-to-use-a-variable-containing-in-email-body/7464/3 "2024-03-20T22:23:21Z")

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Perfect! That worked.

Thanks Vincent. 🙂